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Tesla, Nikola

(Encyclopedia) Tesla, NikolaTesla, Nikolatĕsˈlə [key], 1856–1943, American electrician and inventor, b. Croatia (then an Austrian province). An ethnic Serb, he immigrated to the United States in 1884…

Goffman, Erving

(Encyclopedia) Goffman, Erving, 1922–82, American sociologist, b. Manville, Alta. His field research in the Shetland Islands resulted in The Presentation of Self in Everyday Life (1956), which…

Wiener, Norbert

(Encyclopedia) Wiener, Norbert, 1894–1964, American mathematician, educator, and founder of the field of cybernetics, b. Columbia, Mo., grad. Tufts College, 1909, Ph.D. Harvard, 1913. In 1920 he…

blockade

(Encyclopedia) blockade, use of naval forces to cut off maritime communication and supply. Blockades may be used to prevent shipping from reaching enemy ports, or they may serve purposes of coercion…

digital-to-analog conversion

(Encyclopedia) digital-to-analog or D/A conversion, the process of changing discrete digital data into a continuously varying signal in relation to a standard or reference. There are two types of…

Clegg, Sir Nick

(Encyclopedia) Clegg, Sir Nick (Nicholas William Peter Clegg), 1967–, British politician, grad. Cambridge (M.A., 1989), College of Europe, Bruges, Belgium (M.A., 1992). Of British, Russian, and Dutch…

Holy Spirit

(Encyclopedia) Holy Spirit or Holy Ghost [ghost, i.e., spirit, a translation of Gr. pneuma=breath, air], in Christian doctrine, the third person of the Trinity. The Holy Spirit is sometimes defined…

Antofagasta

(Encyclopedia) Antofagasta Antofagasta äntōfägäˈstä [key], city, capital of Antofagasta region, N Chile, a port on the Pacific Ocean. Antofagasta was founded by Chileans in…

Heseltine, Michael Ray Dibdin

(Encyclopedia) Heseltine, Michael Ray DibdinHeseltine, Michael Ray Dibdinhĕsˈəltīnˌ, hĕzˈ– [key], 1933–, British politician. After studying law at Oxford, he built a successful career in publishing…

Fox sisters

(Encyclopedia) Fox sisters, family of American spiritualists including Margaret, 1836–93, Leah, 1814–90, and Catherine, 1841–92. In 1848, Margaret and Catherine claimed to hear mysterious rappings in…